<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

</body>
<script>
    var arr = [{ label: '男',value: 1 }, { label: '女',value: 0 }]

    var arr2 = arr.map((item, index) =>{
        return item=item.label
    })

    console.log(arr2)
 // arr2 = ['男', '女']

</script>

</html>